The 30-Electron Rule for Triple-Decker Complexes –Vanadium, Niobium and Tantalum Complexes as Illustrative Examples

Authors

  • Prof. Dr. Gerhard E. Herberich,

    Corresponding author
    1. Institut für Anorganische Chemie der Technischen Hochschule, Professor-Pirlet-Strasse 1, D-5100 Aachen (FRG)
    • Institut für Anorganische Chemie der Technischen Hochschule, Professor-Pirlet-Strasse 1, D-5100 Aachen (FRG)
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  • Dr. Ingeborg Hausmann,

    1. Institut für Anorganische Chemie der Technischen Hochschule, Professor-Pirlet-Strasse 1, D-5100 Aachen (FRG)
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  • Dipl.-chem. Norbert Klaff

    1. Institut für Anorganische Chemie der Technischen Hochschule, Professor-Pirlet-Strasse 1, D-5100 Aachen (FRG)
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  • Triple-Decker Complexes, Part 6. This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie. – Part 5:[1].

Abstract

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Strong σ-donor-π-acceptor ligands as outer ligands should lead to 30 as optimum valence electron number for triple-decker complexes. This was confirmed by the synthesis of the light-sensitive complexes 1–4. Hitherto, in the case of niobium and tantalum no triple-decker complexes had been known, and in the case of vanadium only such complexes with 26 valence electrons (2, M = V; 3, M = Nb; 4, M = Ta).

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